I understood clearly what you said. Thanks for detailed text. The protocol uses end-to-end encryption, yes. But, I didn't understand what type of information is being leaked. Do you mean e-mails, phone numbers, profile pics etc. as metadata? If I use another server or self-hosted server, can I avoid the leak. And not only matrix.org, Element uses same types of informations. Element's permissions was a bit high in Android, Flatpak etc. I'm using Element on my GNU desktop and not on phone. No phone number, no profile pic, no e-mail; only username, server and password. Do I still give information?